Resilient wheel.



WHTNESSES.

A. F. HAWKSLEY.

RESILIENT WHEEL.

APPLICATION FILED OCT. 20. 1913. 4

Patented Nov. 2, 1915 3 SHEETS-SHEET 1- INVENTGR MIVZGZ COLUMBIAI'LANOGRAIH co., WAS NNNNNNNNNNNN c A. F. HAWKSLEY.

RES'ILIENT WHEEL. APPLICATION FILED OCT. 20. 1913.

1 ,1 59,21 8. Patented Nov. 2, 1915.

3 SHEETS-SHEET 2 WITNESSES. INVENTOR.

COLUMBIA PLANOLIRAPH co., WASHINGTON, n. c.

A. F. HAWKSLEY.

RESILIENT WHEEL.

APPLICATION FILED OCT. 20, 1913.

1,159,218, Patented Nov. 2, 1915.

3 SHEETS-SHEET 3.

WITN ESSES. JINVENTOR. n 2f Z awZ'sZqy,

COLUMBIA PLANOOIAPH Co., WASHINGTON, D. C.

7 the wheels as described. in the specification of my former UnitedStates Patent 1044522.. The covers for thesepneumaticcushionsareconstructed in an annular form ofc'urved or Z "BESILIE'NTWriEEL.

To all whom it may concern: 7

Be it known that I, ARTHUR FREDERICK HAwKsLEY, a British subject,res'i'dingat Fairhaven, county of Lancaster, England,

have invented certain new and useful Imthe following is a specification.

This invention relates to pneumatic or resilient wheelsin Which a numberof pneumatic cushions are inserted in or applied to semi-circularcontour in cross section with a riphery and another in the center.covers have been constructed of cords or fabric wound around the two.rings and molded with rubber into a curved or 'semicircular formbetweenfthe-rings, the fabric or cords being embedded in layers ofrubberapplied both to the outside andinside of the- Where cords are usedembedded cushion. in thick layers of rubber I find that the rubber isliable to split between the cords and form gaps or spaces into whichportions of the air tubeplaced between the coversmay be forced causingthe tube to burst.

The invention consists essentially in constructing such covers forpneumatic Wheel cushions with rubber impregnated cords which are butslightly attached, unattached or relatively loose to one another,without embedding the cords in layers of rubber and in applying toeither the inner or concave side of the cords or to the outer or convexside of the cords or to both an unattached or loose covering of rubberor other material.

The invention will be fully described with reference to the accompanyingdrawings.

Figure 1. is a front elevation of wheel. Fig. 2. is a front elevation ofa cover partly in section. Fig. 3.- is a sectional elevation of a coverwith the cords partly removed. Fig. 4 is a sectional elevation of amodification showingthe layer'of rubber applied to the concave side ofthe cords. Fig. 5 is a sectional elevation of a modification showing thelayer of rubber applied to the convex side of the cords, and Fig. 6 is asectional elevation of a modification showing 7 to been the case.

These may be secured Specification of Letters Patent." t t 2,1 15.-

7 Application filed October 20, 1913. Seria1No; 79,331.. V i i rubbersufiicient when molded and vul.-.,

canized tocause them to maintain the. shape imparted to them butare -notembedded. in. layers of rubberon both sides. as has hither.

The covers are preferably molded to theshape shownin Patent 1044522. Iapplya cover or. lining Dof sheetrubber or rubber coated or other fabricto the innerv or. concave side of the cover which ;is secured "to atornear the rings or edges Band .Cbutotherwiseloose or unattached-to thecords, or it may be. entirely? un attached yanld if made of rubber is ofsuffi V clent thickness notto be forced between the .cords. Overtheouter or convex side of the coverI also apply-a protective covering-Dof a loose sheet of rubber or rubber coated, or other fabric whichis-attached to: at or M' QFFIFCE- T near the rings 01 edgesBland but-isother-- Wise loose or unattached to the cords A'fi A; cove r-ing a}.ofarubber is appliedto: the; cords over or around the rings 3 and C toare rubber coated or saturated are Wound over the rings B and C in theusual way a rubber covering d being applied over the rings and a loosesheet of rubber D is applied over the inner side and preferably alsoover the outer side of the cords and in position at or near the edges.

What I claim as my invention and desire 1. In'a cover for the cushionsof resilient.

wheels constructed of rubber-impregnated cords wound upon two co-axialrings and but slightly attached to one another without being embeddedinjrubber, a covering apcovering isloose and unattached relatively pliedover one side of the cords, which to said cords and permits independentmovee ment of the cords relativelyto the covering. 2. In a cover for thecushions of resilient wheels constructed of rubber-impregnated cordswound upon two co-axial rings without being embedded in rubber, acovering applied over the concave inner side of the cords to prevent aninflated tube extruding between the cords, and a similar coveringapplied over the outer convex side of the cords, said coverings beingloose and unattached relatively to said cords and permitting independentmovement of the cords 1O relatively to the coverings. r

3.- In a cover for the cushions of resilient Wheels constructed ofrubber-impregnated cords wound upon tWo' co-axial rings Without beingembedded in rubber, a covering applied over the convex outer side of thecords, said covering being loose and unattached relatively to the cordsand permitting independent movement of the cords relatively to thecovering. 7 4;. In a cover for the cushions of resilient Wheels havingtwo co-axial rings, and rub-' 5. In a cover for the cushions ofresilient wheels embodying two co-axial rings and rubber-impregnatedcords wound upon them,

a covering of flexible material applied over the convex outer side ofthe cords and atat tached only to the external and internal peripheryedges of the cords the covering being loose and unattached relatively tothe intermediate portions of the cords and permittingindependentmovement of such por- 40 tions of the cords relatively to thecovering.

6. In a cover for the cushions of resilient wheels embodying tWoco-axial rings and rubbei impregnated cords Wound upon them,

a. covering of flexible material applied over the concave inner side ofthe cords, and an additional covering of flexible material applied overthe convex outer side of the cords, such coverings adhering only to theexternal and internal peripheral edges of the cords and permittingindependent movement of the intermediate portions of the cordsrelatively to the coverings.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses. V

A. FREDK. HAWKSLEY. Witnesses:

J. OWDEN OBRIEN, GEO. I-I. OBRIEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington. D. C. I

